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Initialize IA32_FEATURE_CONTROL MSR in reset and migration

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The recent KVM patch adds IA32_FEATURE_CONTROL support. QEMU needs
to clear this MSR when reset vCPU and keep the value of it when
migration. This patch add this feature.

Signed-off-by: Arthur Chunqi Li <yzt356@gmail.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
This commit is contained in:
Arthur Chunqi Li 2013-07-07 23:13:37 +08:00 • committed by Gleb Natapov
parent f03d07d468
commit 0779caeb1a
3 changed files with 28 additions and 0 deletions
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2
target-i386/cpu.h
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@ -301,6 +301,7 @@
#define MSR_IA32_APICBASE_BSP (1<<8)
#define MSR_IA32_APICBASE_ENABLE (1<<11)
#define MSR_IA32_APICBASE_BASE (0xfffff<<12)
#define MSR_IA32_FEATURE_CONTROL 0x0000003a
#define MSR_TSC_ADJUST 0x0000003b
#define MSR_IA32_TSCDEADLINE 0x6e0
@ -813,6 +814,7 @@ typedef struct CPUX86State {
uint64_t mcg_status;
uint64_t msr_ia32_misc_enable;
uint64_t msr_ia32_feature_control;
/* exception/interrupt handling */
int error_code;